Solve for x
x=\frac{y}{13}
Solve for y
y=13x
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y=3x+10x
Multiply 5 and 2 to get 10.
y=13x
Combine 3x and 10x to get 13x.
13x=y
Swap sides so that all variable terms are on the left hand side.
\frac{13x}{13}=\frac{y}{13}
Divide both sides by 13.
x=\frac{y}{13}
Dividing by 13 undoes the multiplication by 13.
y=3x+10x
Multiply 5 and 2 to get 10.
y=13x
Combine 3x and 10x to get 13x.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
y = 3x + 4
Arithmetic
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Matrix
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}